Hello everyone, thanks for the very hard work with commissioning the observatory and compiling the SV data set. Is there a very rough estimate on how large the DP2 data set is going to be, in terms of TB on disk? In particular we (DESC) are interested on a guesstimate for coadd images. Thanks!

Hi @nsevilla , I’m not sure there’s yet a published estimate for DP2, no. But there is a summary of the data obtained during commissioning, and in particular for the science validation surveys on which DP2 will be based, that we can use as an upper limit. Science Validation Survey Progress Report, 2…

One small clarification - the 1000 square degrees referenced at the bottom of the survey progress report linked above is the area that reached approximately half of the one year exposure time for the LSST WFD. The total SV area was a bit over 3,000 square degrees and while I can’t predict exactly ho…

Thanks, indeed, we put in some padding in our request for space of a factor of a few. Best N

Hello! Do we have an updated estimate for size of coadds and catalogs (files) of the actual upcoming DP2 early release? Thank you!

Closing it as it is being discussed here (duplicate): [image] DP2 timeline after publication/release Data Products Hi Nacho, thanks for this question. AFAIK there isn’t a timeline set yet for post-release transfers, as the actual release date of DP2 is not yet…

Very approximate size of DP2

Support Data Products

nsevilla (Nacho Sevilla-Noarbe) July 9, 2026, 8:32am 6

Closing it as it is being discussed here (duplicate):

Topic		Replies	Views
What would be in 2 months of LSST visits if it was included in DP2? Survey Strategy dp2	1	809	March 5, 2026
Sky-estimation box size used for DP2 deep coadds Data Products dp2	4	298	September 10, 2026
DP2 ObjectLite Size? Support	1	689	January 31, 2026
Question about the proposed contents of DP2 Data Products dp2	2	846	August 11, 2025
Small Field Observations in commissioning Survey Strategy	0	553	August 20, 2025

Very approximate size of DP2

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